Why Should the Convert Experiments Code be Included in the Head Block?

Understand Convert Code and Head Blocks

The snippet of Javascript code should be placed in the header part of each page of your website. The code looks for changes that need to be made before the entire page is loaded. Having the script in the header will give more accurate tracking numbers as well as a fast switch from the original version to the variation before the visitor see the difference between the two.

Understand Advanced Experiments

Placing the code under the header might lead to a visual blink where for a fraction the old version is visible. This can negatively influence conversion. So it is highly recommended to place the code in the header as high up in the code for the optimal results.

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